The internet this morning is buzzing with the latest Tesla news. An anonymous source who claims to have knowledge of the matter says the company plans to produce a car with a starting price of €25,000 at its factory in Grünheide, Germany, according to a report byThat’s it. There are no further details to report, but that won’t keep us from speculating further on this report.
One of the biggest challenges in using high-pressure castings is designing sub-frames that are hollow but have the internal ribs needed to dissipate the forces that occur during crashes. The sources claim innovations by design and casting specialists in Britain, Germany, Japan, and the United States are using 3D printing and industrial sand to solve some of those issues.
Despite that greater flexibility, however, there was still one more major hurdle to overcome before large-scale castings could be made successfully. The aluminum alloys used to produce the castings behave differently in molds made of sand than they do in molds made of metal. Early prototypes often failed to meet Tesla’s specifications.
Presses with high clamping power cannot accommodate the 3D-printed sand cores needed to make hollow subframes. To solve that problem, Tesla is using a different type of press into which molten alloy can be injected slowly — a method that tends to produce higher quality castings and can accommodate the sand cores.
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